Installation and operating instructions Wilo-Control SC-L 51
APPENDIX English
Switching cycles of pump 3
Switching cycles of pump 4
Communication
Communication parameters
Output parameters
Collective run signal (SBM) parameter
Collective fault signal (SSM) parameter
ModBus
BACnet
GSM modem
Dry run
Switching threshold for dry run signal.
Delay time (restart after dry run)
Follow-up time in event of dry run
High water
Switching threshold for high water signal
Delay time (up to triggering of high water)
Base-load pump: Activation threshold
Base-load pump: Deactivation threshold
Base-load pump: Delay time deactivation
Peak-load pump 1: Activation threshold
Peak-load pump 2: Activation threshold
Peak-load pump 3: Activation threshold
Peak-load pump: Delay time for activation
Peak-load pump 1: Deactivation threshold
Peak-load pump 2: Deactivation threshold
Peak-load pump 3: Deactivation threshold
Peak-load pump: Delay time deactivation
System restart delay time
11.2. System impedance tables
System impedances for 3~400 V, 2-pole, direct starting
Power
System impedance
Connections/h
kW
ohms
2.2
0.257
12
2.2
0.212
18
2.2
0.186
24
2.2
0.167
30
3.0
0.204
6
3.0
0.148
12
3.0
0.122
18
3.0
0.107
24
4.0
0.130
6
4.0
0.094
12
4.0
0.077
18
5.5
0.115
6
5.5
0.083
12
5.5
0.069
18
7.5
0.059
6
7.5
0.042
12
9.0 – 11.0
0.037
6
9.0 – 11.0
0.027
12
15.0
0.024
6
15.0
0.017
12
System impedances for 3~400 V, 2-pole, star-delta
starting
Power
System impedance
Connections/h
kW
ohms
5.5
0.252
18
5.5
0.220
24
5.5
0.198
30
7.5
0.217
6
7.5
0.157
12
7.5
0.130
18
7.5
0.113
24
9.0 – 11.0
0.136
6
9.0 – 11.0
0.098
12
9.0 – 11.0
0.081
18
Summary of Contents for Control SC-L
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